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-rw-r--r--include/asm-frv/io.h392
1 files changed, 0 insertions, 392 deletions
diff --git a/include/asm-frv/io.h b/include/asm-frv/io.h
deleted file mode 100644
index ca7475e73b5e..000000000000
--- a/include/asm-frv/io.h
+++ /dev/null
@@ -1,392 +0,0 @@
1/* io.h: FRV I/O operations
2 *
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 * This gets interesting when talking to the PCI bus - the CPU is in big endian
12 * mode, the PCI bus is little endian and the hardware in the middle can do
13 * byte swapping
14 */
15#ifndef _ASM_IO_H
16#define _ASM_IO_H
17
18#ifdef __KERNEL__
19
20#include <linux/types.h>
21#include <asm/virtconvert.h>
22#include <asm/string.h>
23#include <asm/mb-regs.h>
24#include <linux/delay.h>
25
26/*
27 * swap functions are sometimes needed to interface little-endian hardware
28 */
29
30static inline unsigned short _swapw(unsigned short v)
31{
32 return ((v << 8) | (v >> 8));
33}
34
35static inline unsigned long _swapl(unsigned long v)
36{
37 return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
38}
39
40//#define __iormb() asm volatile("membar")
41//#define __iowmb() asm volatile("membar")
42
43#define __raw_readb __builtin_read8
44#define __raw_readw __builtin_read16
45#define __raw_readl __builtin_read32
46
47#define __raw_writeb(datum, addr) __builtin_write8(addr, datum)
48#define __raw_writew(datum, addr) __builtin_write16(addr, datum)
49#define __raw_writel(datum, addr) __builtin_write32(addr, datum)
50
51static inline void io_outsb(unsigned int addr, const void *buf, int len)
52{
53 unsigned long __ioaddr = (unsigned long) addr;
54 const uint8_t *bp = buf;
55
56 while (len--)
57 __builtin_write8((volatile void __iomem *) __ioaddr, *bp++);
58}
59
60static inline void io_outsw(unsigned int addr, const void *buf, int len)
61{
62 unsigned long __ioaddr = (unsigned long) addr;
63 const uint16_t *bp = buf;
64
65 while (len--)
66 __builtin_write16((volatile void __iomem *) __ioaddr, (*bp++));
67}
68
69extern void __outsl_ns(unsigned int addr, const void *buf, int len);
70extern void __outsl_sw(unsigned int addr, const void *buf, int len);
71static inline void __outsl(unsigned int addr, const void *buf, int len, int swap)
72{
73 unsigned long __ioaddr = (unsigned long) addr;
74
75 if (!swap)
76 __outsl_ns(__ioaddr, buf, len);
77 else
78 __outsl_sw(__ioaddr, buf, len);
79}
80
81static inline void io_insb(unsigned long addr, void *buf, int len)
82{
83 uint8_t *bp = buf;
84
85 while (len--)
86 *bp++ = __builtin_read8((volatile void __iomem *) addr);
87}
88
89static inline void io_insw(unsigned long addr, void *buf, int len)
90{
91 uint16_t *bp = buf;
92
93 while (len--)
94 *bp++ = __builtin_read16((volatile void __iomem *) addr);
95}
96
97extern void __insl_ns(unsigned long addr, void *buf, int len);
98extern void __insl_sw(unsigned long addr, void *buf, int len);
99static inline void __insl(unsigned long addr, void *buf, int len, int swap)
100{
101 if (!swap)
102 __insl_ns(addr, buf, len);
103 else
104 __insl_sw(addr, buf, len);
105}
106
107#define mmiowb() mb()
108
109/*
110 * make the short names macros so specific devices
111 * can override them as required
112 */
113
114static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
115{
116 memset((void __force *) addr, val, count);
117}
118
119static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
120{
121 memcpy(dst, (void __force *) src, count);
122}
123
124static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
125{
126 memcpy((void __force *) dst, src, count);
127}
128
129static inline uint8_t inb(unsigned long addr)
130{
131 return __builtin_read8((void __iomem *)addr);
132}
133
134static inline uint16_t inw(unsigned long addr)
135{
136 uint16_t ret = __builtin_read16((void __iomem *)addr);
137
138 if (__is_PCI_IO(addr))
139 ret = _swapw(ret);
140
141 return ret;
142}
143
144static inline uint32_t inl(unsigned long addr)
145{
146 uint32_t ret = __builtin_read32((void __iomem *)addr);
147
148 if (__is_PCI_IO(addr))
149 ret = _swapl(ret);
150
151 return ret;
152}
153
154static inline void outb(uint8_t datum, unsigned long addr)
155{
156 __builtin_write8((void __iomem *)addr, datum);
157}
158
159static inline void outw(uint16_t datum, unsigned long addr)
160{
161 if (__is_PCI_IO(addr))
162 datum = _swapw(datum);
163 __builtin_write16((void __iomem *)addr, datum);
164}
165
166static inline void outl(uint32_t datum, unsigned long addr)
167{
168 if (__is_PCI_IO(addr))
169 datum = _swapl(datum);
170 __builtin_write32((void __iomem *)addr, datum);
171}
172
173#define inb_p(addr) inb(addr)
174#define inw_p(addr) inw(addr)
175#define inl_p(addr) inl(addr)
176#define outb_p(x,addr) outb(x,addr)
177#define outw_p(x,addr) outw(x,addr)
178#define outl_p(x,addr) outl(x,addr)
179
180#define outsb(a,b,l) io_outsb(a,b,l)
181#define outsw(a,b,l) io_outsw(a,b,l)
182#define outsl(a,b,l) __outsl(a,b,l,0)
183
184#define insb(a,b,l) io_insb(a,b,l)
185#define insw(a,b,l) io_insw(a,b,l)
186#define insl(a,b,l) __insl(a,b,l,0)
187
188#define IO_SPACE_LIMIT 0xffffffff
189
190static inline uint8_t readb(const volatile void __iomem *addr)
191{
192 return __builtin_read8((__force void volatile __iomem *) addr);
193}
194
195static inline uint16_t readw(const volatile void __iomem *addr)
196{
197 uint16_t ret = __builtin_read16((__force void volatile __iomem *)addr);
198
199 if (__is_PCI_MEM(addr))
200 ret = _swapw(ret);
201 return ret;
202}
203
204static inline uint32_t readl(const volatile void __iomem *addr)
205{
206 uint32_t ret = __builtin_read32((__force void volatile __iomem *)addr);
207
208 if (__is_PCI_MEM(addr))
209 ret = _swapl(ret);
210
211 return ret;
212}
213
214#define readb_relaxed readb
215#define readw_relaxed readw
216#define readl_relaxed readl
217
218static inline void writeb(uint8_t datum, volatile void __iomem *addr)
219{
220 __builtin_write8(addr, datum);
221 if (__is_PCI_MEM(addr))
222 __flush_PCI_writes();
223}
224
225static inline void writew(uint16_t datum, volatile void __iomem *addr)
226{
227 if (__is_PCI_MEM(addr))
228 datum = _swapw(datum);
229
230 __builtin_write16(addr, datum);
231 if (__is_PCI_MEM(addr))
232 __flush_PCI_writes();
233}
234
235static inline void writel(uint32_t datum, volatile void __iomem *addr)
236{
237 if (__is_PCI_MEM(addr))
238 datum = _swapl(datum);
239
240 __builtin_write32(addr, datum);
241 if (__is_PCI_MEM(addr))
242 __flush_PCI_writes();
243}
244
245
246/* Values for nocacheflag and cmode */
247#define IOMAP_FULL_CACHING 0
248#define IOMAP_NOCACHE_SER 1
249#define IOMAP_NOCACHE_NONSER 2
250#define IOMAP_WRITETHROUGH 3
251
252extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
253
254static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
255{
256 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
257}
258
259static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size)
260{
261 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
262}
263
264static inline void __iomem *ioremap_writethrough(unsigned long physaddr, unsigned long size)
265{
266 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
267}
268
269static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned long size)
270{
271 return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
272}
273
274#define ioremap_wc ioremap_nocache
275
276extern void iounmap(void volatile __iomem *addr);
277
278static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
279{
280 return (void __iomem *) port;
281}
282
283static inline void ioport_unmap(void __iomem *p)
284{
285}
286
287static inline void flush_write_buffers(void)
288{
289 __asm__ __volatile__ ("membar" : : :"memory");
290}
291
292/*
293 * do appropriate I/O accesses for token type
294 */
295static inline unsigned int ioread8(void __iomem *p)
296{
297 return __builtin_read8(p);
298}
299
300static inline unsigned int ioread16(void __iomem *p)
301{
302 uint16_t ret = __builtin_read16(p);
303 if (__is_PCI_addr(p))
304 ret = _swapw(ret);
305 return ret;
306}
307
308static inline unsigned int ioread32(void __iomem *p)
309{
310 uint32_t ret = __builtin_read32(p);
311 if (__is_PCI_addr(p))
312 ret = _swapl(ret);
313 return ret;
314}
315
316static inline void iowrite8(u8 val, void __iomem *p)
317{
318 __builtin_write8(p, val);
319 if (__is_PCI_MEM(p))
320 __flush_PCI_writes();
321}
322
323static inline void iowrite16(u16 val, void __iomem *p)
324{
325 if (__is_PCI_addr(p))
326 val = _swapw(val);
327 __builtin_write16(p, val);
328 if (__is_PCI_MEM(p))
329 __flush_PCI_writes();
330}
331
332static inline void iowrite32(u32 val, void __iomem *p)
333{
334 if (__is_PCI_addr(p))
335 val = _swapl(val);
336 __builtin_write32(p, val);
337 if (__is_PCI_MEM(p))
338 __flush_PCI_writes();
339}
340
341static inline void ioread8_rep(void __iomem *p, void *dst, unsigned long count)
342{
343 io_insb((unsigned long) p, dst, count);
344}
345
346static inline void ioread16_rep(void __iomem *p, void *dst, unsigned long count)
347{
348 io_insw((unsigned long) p, dst, count);
349}
350
351static inline void ioread32_rep(void __iomem *p, void *dst, unsigned long count)
352{
353 __insl_ns((unsigned long) p, dst, count);
354}
355
356static inline void iowrite8_rep(void __iomem *p, const void *src, unsigned long count)
357{
358 io_outsb((unsigned long) p, src, count);
359}
360
361static inline void iowrite16_rep(void __iomem *p, const void *src, unsigned long count)
362{
363 io_outsw((unsigned long) p, src, count);
364}
365
366static inline void iowrite32_rep(void __iomem *p, const void *src, unsigned long count)
367{
368 __outsl_ns((unsigned long) p, src, count);
369}
370
371/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
372struct pci_dev;
373extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
374static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
375{
376}
377
378
379/*
380 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
381 * access
382 */
383#define xlate_dev_mem_ptr(p) __va(p)
384
385/*
386 * Convert a virtual cached pointer to an uncached pointer
387 */
388#define xlate_dev_kmem_ptr(p) p
389
390#endif /* __KERNEL__ */
391
392#endif /* _ASM_IO_H */
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